Paper-carriage.



A. PENTECOST.

PAPER CARRIAGE.

APPLICATION FILED APR. 30. I915.

Patented Dec. F, 19m.

A. ATTORNEY? e 'abl y curve upwardly nnrrnp sirens A'RTHUR PENTECOST, OF EAST ORANGE,

NEW JERSEY, ASSIGNOR TO-THE ADDER MACHINE COMPANY, OF WILKES-BARRE, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

Specification of Letters Patent.

PAPER-CARRIAGE.

Patented Dec. 5', 1916.

Application filed April 30, 1915. Serial No. 24,897.

To all whom it may concern Be it known that I, ARTHUR Pnx'rnoos'r, a. subject of the King of England, residing at East Orange, Essex county, New Jersey, have invented new and useful Improvements in Paper-Carriages, of which the following is a specification.

This invention relates more particularly to compression feed-roll and release mechanisms for paper carriages.

One object is to provide a simple and novel compression feed roll mechanism which readily accommodates itself to varying thicknesses of work sheets or packs of work sheets.

Another object is to enable the operator, by a perfectly natural movement, to cast off the rolls; to use both hands in. adjusting or alining the work in the machine while maintaining the compression rolls released, and

to provide for the automatic restoration of the rolls to active position upon the conclusion of the adjusting operation.

A further object is to support a paper roll holder out of contact with the platen, and prevent the accidental release of the compression rolls when a web of paper is being used.

Otherobjects and advantages will be more fully explained hereinafter and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a front view of a paper carriage, equipped with my invention; Fig'. 2 is an end View, showing the means which prevents accidental operation of the compression roll release mechanism when the paper roll holder is in position. Fig. 3 is'a sectional view, showing the compression feed rolls cast off, and Fig, l is a. detail perspective view of a group of compression feed rolls.

A platen axle 2004c journaled in end frames 2010 of a paper carriage, supports a platen 2094-.

The compression feed roll mechanism comprises front compression roll-supporting levers or members 2015-; arranged in pairs and journaled intermediate their ends on a rod or support 2003 fixed in the end frames 2010 and extending parallel with and be ncath the platen 2094.

The upper arms of the lovers 20151; prefin front of the platen to guide the. work sheets upwardly in front of the platen, and each pair of arms supports a front compression roll 2097 journaled at its opposite ends, at 2005, in said arms.

Rear compression roll-supporting levers or members 2015, preferably of bell crank sion rolls 2007 extend between and are j ournaled at 2005 in the upper arms of each pair of rear roll-supporting members.

Each member of a pair of front roll-supporting levers 2015-} is journaled adjacent the obi-responding member of a pair of rear roll-supporting members 2015, said members and their compression rolls constituting one group (Fig. 4) of a series of independent groups of compression roll devices. Sleeves 2044: in each group space the right hand front and rear roll-supporting members apart from the left hand front and rear members, to prevent lateral shifting of the members whichmight bind on the rolls, and sleeves 20.l5 separate the respective compression roll groups, and maintain them in proper position along the platen. A removable collar 20 l5lsecured to the rod 2003 prevents lateral shifting of the groups of compression roll devices and sleeves collectively.

By independently journaling the several arms 2015, 2015:} on the rod 2003, the compression rolls are permitted great flexibility to accommodate themselves to inequalities in thickness of paper.

The lower arms 20151; and 2015 of the respective pairs of front and rear roll-sup- -porting levers, lie substantially parallel with each other, and preferably project rear- .wa rdly from the fixed rod 2003, the respective lower arms of adjacent levers being spaced apart from each other in a vertical plane. Springs 2081 connect the respective lower arms of adjacent front and rear supporting levers to press the compression rolls yieldingly against the platen.

The compression roll release mechanism includes a flattened bar 2092?}, preferably oblong in cross-section, extending parallel with the platen and lying in the spaces between the respective lower arms of the forward and rear roll-supporting levers. Trun'nions 2057 on the ends of the release Cranks,2022 fast on to the printing point,

- from the sheet "for until it is clamps bar 2092 extend through the end frames 2010 of the carriage to support the bar for rocking. The springs 2081 normally hold the bar withitsmajor. axis parallel with the lower arms 2015.; and 2015 (Fig. 2). the trunnions project upwardly alongside the outer faces of the frame pieces 2010- and behind the platen axle, the upper ends of the cranks extending to a plane above the platen. lease rod 2000 extending parallel with the platen connects the cranks, the release rod being some distance in front of the usual paper table 2023.

The papertable guides the. leading edg' e of a work sheet to the bite between the rear compression rolls 2097 and the platen 20%. Turning the platen by means of the knob or twirler 2090 on the platen axle 2001, advances the leading edge of the sheetaround beneath the platen and up in front thereof. The upper arms of the roll-supporting levers 2015 and 2015;- guide the leading edge as it progresses beneath the platen.

Heretofore, in typewriting machines, 1f itwas desired to bring a desired writing line or to make'any other adjustment of the sheet relatively to the platen, the operator first had to cast off the compression'rolls, which remained in di abled position, then grasp the sheet and adjustit, after which, he would throw in the compression rolls, with one hand, meanwhile holding the sheet in adjusted position with the other. This form of compression roll release mechanism was subject to at least two disadvantages. The operator often forgotio' return the compression rolls to normal position before starting to write,

and thus had to readjust the sheet even it he did not spoil it by prematurely printing thereon, and even if he remembered to re turn the rolls, he had to release one hand such operatiouand was liable to lose the adjustment of the sheet. To partially remedy this last objection, the compression rolls have been arranged to return to active position as soon as pressure on the releasing mechanism was relieved, but this required the operator to adjust the sheet with one hand only, the other being occupied in holding the release mech anism in operative position during such adjustment. This necessitated the exercise of considerable skill and dexterity and caused a loss of time. I

. My invention enables the operator to cast off the compression rolls by a perfectly natural and practically involuntary motion. and at the same time, permits the use of both hands to adjust the-paper qui kly and to retain the pa er in adjusted position in place by the rolls. With my improved mechanism, the operator merely extends his arms until his A universal rereturns.

reasseswrists rest upon the universal release rod 2000. By the simple act or" applying the weight of or resting his wrists on the rod, he involuntarily lowers his arms by bending them slightly at the elbows, which results in drawing his Wrists toward his body. This motion of the wrists draws the release rod 2000 forwardly, which rocks the cranks 2022 and turns the flattened release bar 2092;} ,out of parallelism with the lower arms 2015 and 20159;, to spread said arms apart against the tensions of the springs 2081 and swing the upper arms of the levers 2015 and 2015+} with their compression rolls, away from the platen.

The operators hands are thus left free in just the proper positions at the opposite side edges of the work sheet, to enable him to adjust the sheet, after which by lifting his wrists 0d of the release rod, while still grasping the sheet with both hands, the. springs 2081, operating through the lower arms of levers 2015, and 2015-1 reversely rotate the release bar 2092} to restore the compression rolls to active position and return the release rod 2000 to normal idle position. Theoperator may even control. the speed of return of the compression rolls by permitting more or less friction between his wrists and the rod 2000 as the latter The cranks 2022 contact with the platen axle 2004: on the eflective stroke of the release mechanism, (Fig. 8) to arrest the release bar 2092;" before the latter can turn 100 sufficiently to lock the lower arms of the rollsupporting levers in cast off position.

The springs 2081 enable the compression roll-supporting levers 2015 and 2015.; toaccommodate themselves to the varying thick- 19-5 nesses of packs of work sheets, independently of the release bar 209%.

it is sometimes desired to print lists on strips or webs of paper, usually stored in a roll, and to enable fed around the platen, a paper roll holder is provided which is shiftable, with its roll, into and out of the paper chute between the platen 209i and the paper table 2023.

To this end, I the side frames 2029 (Fig. 2) of a paper roll holder on the brace rod 2001 at the upper edge of the paper table, sothat the holder may be swung into and out of the operative position shown in Fig. 2. The paper 12L such strips or webs to be journal. the rear ends of 1;:

The pressure of the 139 provide stops 20:29 on paper holder on the universal rod might fiend to swing the rod forwardly to. release the compression'rolls which would impair the feed of the paper Web,

the lower 'edges of the side frames, the stops lying in front of and in contact with the release'rod to lock the latter against accidental operation. The weight of the paper roll holder thus assists in maintaining the compression roll. release mechanism in its normal idle position. Fur thermore, the lower edges of the free ends of the side frames are so curved at 2029 as to enable the weight of the paper roll holder to assist in restoring the compression rolls by pressing the release rod 2000 rearwa rdly, in case the'paper roll holder is swung into operative position while the release rod is out of its normal idle position.

The paper roll holder is swung backwardly out of the way, to leave the paper chute unobstructed when wide sheets are to be inserted in the machine.

Changes may be made in the form and arrangement of the several parts disclosed without, departing from the spirit and scope of this invention.

' What I claim is:

-1. The combination with end frames; a

platen and a. support extending beneath the platen; of independent groups ofcompression rolls arranged along the support, each group comprising a pair of front compression roll-supporting members independent of each other and separately journaled on the support for independent rocking, and a pair of rear compression roll-supporting members independent of each other and separately journaled on the support adjacent the corresponding front roll-supporting members; compression rolls journaled in the upper arms 6f the respective pairs of members; means connected with the respective members to press the rolls yieldingly against the platen; and means operatively connected to the members to rock the latter and cast off the rolls.

2. Thecombination with end frames; a platen; and a support extending beneath the platen; of independent groups of compression rolls arranged along the support, each group comprising a pair of front compression roll-supporting members independent of each other and separately journaled on the support for independent rocking, and a pair of rear compression roll-supporting members independent of each other and separately journaled on the support adjacent the corresponding front roll-supporting members; compression rolls journaled in the upper arms of the respective pairs of members; the lower arms of the respective pairs of members lying substantially parallel with and spaced apart from each other; springs connecting the lower arm of each front rollto avoid which I in the end frames of the platen and ex- .adapted'to be shifted into and supporting member with the adjacent lower arm of the corresponding rear roll-supporting member to press theu'oll's' yieldingly against the platen; a flattened bar j'ournaled tending between the lower arms of the front and rear members; upwardly projecting cranks on the bar; and a universal release rod above the platen to connectthe cranks.

3. The combination with a. papercarriage; and a platen journaled in the end frames thereof; of a compression feed roll and release mechanism, comprising suitably journaled pairs of front roll-supporting members, and of rear roll-supporting members; compression rolls journaledin the upper arms of the respective pairs of front i and rear roll-supporting members; the lower pression roll-supporting members; cranks secured to the flattened bar at opposite ends of the carriage; and a universakrelease rod lying above and parallel with the platen, to connect the cranks.

L. The combination with a paper carriage having a paper throat adapted to ac commodate work sheets; a platen journaled in the end frames of the carriage; and compression feed rolls yieldingly pressed against 0 the platen; of a universal compression roll release mechanism including a rod extending across the paper throat; a paper web holder out of the paper throat; and adapted to rest upon the universal rod, when in operative position in the paper throat; and means on the paper web holder to lock the compression roll re lease mechanism against operation when the paper web holder is in operative position.

5. The combination with a paper carriage; a platen j ournaled in the end frames thereof; and compression feed rolls yieldingly pressed against the platen; of a release mechanism for the compression rolls; including'a universal rod lying above and parallel with the platen; and means to re-' strain the bar against effective operation.

6. Thecombination with a paper carriage; a platen journaled in the end frames thereof; and compression feed rolls yieldingly pressed against the platen; of a release mechanism for the compression rolls; including a universal rod lying above and parallel with the platen; and a removable thereof; and compression feed rolls yield ingly pressed against the platen of arelease mechanism for the compression rolls; including a universal rod lying above and parallel With the platen; and a paper holder shiftable into operative position to rest on the universal rod.

8. The combination with a paper carriage; a platen journaled in the end frames thereof; and compression feed rolls yieldingly pressed against the platen; of a release mechanism for the compression rolls; including a universal rod lying above and parallel with the platen; a paper holder shiftable into operative position to contact Copies of this patent may be obtained for With the universal rod and restore it and the compression rolls -to normal position, and means on the paper holder to retain the rod and compression rolls in such position. I

9. The combination with a platen; and compression feed rolls therefor; of cast-oil mechanism for the rolls, including rocking cranks at opposite ends of the platen; and a universal release rod carried by the cranks above and parallel With the platen, and so arranged that it is rocked forwardly by the act of resting the Wrists thereon to cast off the rolls; and means to restore the rolls and rod when pressure on the rod is relieved.

ARTHUR PENTEGOST.

five cents each, by addressing the Commissioner of Eatents,

' Washington, D. G. 

